Description: sonotone, a famous maker of audio tubes, hifi amps, mics, and hearing aids, was based in ny usa w/ over 400 tubes by the '50s!legendary 5814a, quite rare w/ special unique dampered mica uppers, just ask the 7025 clear top crowd how good sonotone are!limited run collectibles and for good reason, ultra small (sturdier) glass envelope, coil wound heater w/ special coated internalsregarded neutral sound reproduction, clear full tone, high headroom, stunning blues overdrive (and less strident than rca canada)high quality tube-era metallurgy w/ uncolored sonic warmth, look closely at each tube for their incredibly unique internals often compared to tung-sol or rca, this considerably rarer brand is hard to find, eventually supplied by mullard/telefunk/siemensyes, even telefunken/mullard/siemens made tubes for sonotone, as transistors led to the sell-off/transfer of their manufacturing the 5814a is a top shelf premium 12au7 ecc82 upgrade, long-life low-noise rugged 12au7wa equivalent, high power at 175ma1 x authentic 1964 usa sonotone w/ rare oe box, cv4032 equivalent! often lost to time in collections of audiophiles or enthusiasts full gm conductance test balance 100/101 % mutual gm (65 % good) + useful life test pass (a key longetivity indicator) our unique gm output test applies 225 vdc simulating actual circuit operations w/ filtered dc + leak gas short checkall tubes undergo a complimentary proprietary refurb and deox process, one of a kind qc process to reduce noise give 100+ session hrs w/ your specific amps voltage to fully cure (breakin process is important)very nice silkscreens, ships worldwide well packed w/ free economy postage authentic vintage hifidelity audiophile / preamp / power / mic tube curation by caliacousticssee our official website for new arrivals + reserve/request options + limited run specials+ rare true-nos sealed box + pinched waist editions + high-res headphones
Price: 249 USD
Location: Leander, Texas
End Time: 2024-09-21T16:39:40.000Z
Shipping Cost: 0 USD
Product Images
Item Specifics
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 14 Days
Refund will be given as: Money Back
Brand: Sonotone
Type: Preamp Tubes
Custom Bundle: No
Model: 12au7wa 5814a ecc82 13d5 6189 CV4032
MPN: 12au7wa 5814a ecc82 13d5 6189 CV4032
Country/Region of Manufacture: United States
Modified Item: No
